Hello mdaros,
This thing is not controlled from our theme but you can have control over this with SEO Yoast plugin. For more information about how to change the meta tags with this plugin, please consult plugin’s documentation here -> https://yoast.com/social-media-optimization-with-wordpress-seo-by-yoast/
Hope this helps!
Thank you for them message!
continue with the same problem already installed Yoast SEO plugin in which solved nothing …..
even with the disabled plugin some posts are not working properly as some images below


I was searching the web and found a website that uses the theme newspaper and does not have the plugin installed. And it works perfectly
http://www.terraadentro.com/
Please I need help
Have you tried editing your excerpt manually on your post page to show only the content you want in the OG tag excerpt and/or use the on-page custom version in Yoast SEO “per post” to control that ?
If you look at your page source for a post, whatever is actually *in* the OG tag, is what they will pick-up for sharing. Hence the suggestions to use Yoast and/or the WP excerpt snippet box on post page to control what gets entered into the OG “description” tag in your meta data found in HEAD area of each post.
Take a look at your post page source, to see what is actually there.
Theme doesn’t control this — the data YOU setup per post which gets put into the OG tags, is what FB uses.
Sorry if that is not a simple one click answer 🙂
